396 Mr. G. A. K. Marshall 07i the 



carina, evenly set with large shallow punctures, each con- 

 taining a very short white seta ; colour dull black. Elytra 

 subtruncate at base, a little laroader than prothorax at 

 shoulders, which are rounded, sides subparallel to beyond 

 middle ; upper surface somewhat convex, with ten complete 

 stria3 containing deep closely-set punctures, the intervals 

 plane, as broad as the striie near the suture, but those between 

 the third and fourth stride and between the fifth and sixth are 

 very narrow and uneven, so that the punctures m these strife 

 are respectively approximated and often irregular or even 

 more or less confused together (type form) ; the broader 

 intervals have each a row of small but distinct and close 

 punctures bearing minute depressed white seta; colour, dull 

 black. Legs punctate, with scattered depressed white seta?, 

 piceous, with the tarsi ferruginous. 



Portuguese E. Africa : Beira (P. A. Sheppard). 

 Type in the British Lluseum. 



Allied to C. abscissus, Boh., from which it differs, however, 

 in many characters. Its nearest ally is C. tonidus, Boh., 

 from Senegal, but the latter, which is a more robust insect, 

 has its rostrum very strongly and quadrangularly dilated at 

 the apex and with a low central carina; the thoracic constric- 

 tion is similar, but the basal margin is more deeply bisinuate, 

 and the intervals on the elytra are much more coarsely 

 punctured. 



I have much pleasure in dedicating this species to Mr. P. A. 

 Sheppard, of Beira, to whom I am indebted for much valuable 

 material from that hitherto unworked locality. 



3. Cossonus carinicollisj Fahr. 

 • Cossonus carinicollis, Fahr. fEfv. K. Vet.-Akad. FiJrh. 1871, p. 284. 



Long. 5-8, lat. 1^-2^ mm. 



Head subconical, closely and strongly punctured ; forehead 

 with a deep central fovea ; eyes slight!}' prominent, liostrian 

 rather longer than head, parallel-sided to about middle, thence 

 abruptly and quadfangularly dilated ; upper surface plane, 

 closely and distinctly punctured, but with a variable impunc- 

 tate median line or patcli ; antennae inserted near apex. 

 Frothorax scarcely longer than broad, apex truncate and 

 much narrower than base, wliieh is slightly bisinuate, sides 

 moderately rounded, broadest at middle, slightly constricted 

 at apex, posterior angles with a very small acute projection ; 

 ujjper surface almost plane, closely and distinctly punctured 

 througliout, and with a smooth central carina, which l)as a 

 broad shallow impression on each side at base ; colour black 



